Which of the Following Is an Effect of Exercise on Protein

Which of the following is an effect of exercise on protein metabolism?

A) Protein synthesis is inhibited during exercise.
B) Protein use as a fuel is lowest in endurance athletes.
C) Protein use during physical performance is generally not related to carbohydrate content of the diet.
D) Protein synthesis is increased slightly during exercise but thereafter diminishes by a like amount to remain in balance.
E) Protein synthesis is unrelated to exercise.